Gas furnace



May 25 ,1926.

G. A. SIMMONS GAS FURNACE Filed April 2a; 1925 2 Sheets-Sheet 1 May 251926.

G. A. SIMMONS.

GAS FURNACE Filed April 28. 1925 2 Sheets-Sheet? 6.1%. SIMMONS.

Patented May 25, 1926.

A, SIMMONS, OF PORTLAND, OREGON.

GAS FURNACE.

Application filed April 28, Serial No. 26,369.

the furnace and attack the metal structure thereof.

The second object is to so construct the -l.u rna'ce that it will beexceedingly easy to clean and at the same time make same capable ofhandling a relatively large volume of air in proportion to its size.

These results areattained. in the manner specified in the followingspecification as illustrated in the accompanying drawings, in'

which Figure 1 is a. front elevation of the furnace of which Figure 2 isa horizontal section taken along the line 22 in Figure 8. Figure 3 is avertical section taken along the line 33 in Figure 4. Figure 1 is avertical section taken along the line 44 in Figure 8.

Similar numbers of reference refer to the same parts throughout theseveral views.

Referring in detail to the drawings, the furnace consists of a.rectangular combustion chamber having a side opening projection 11.formed on the front thereof. The pro jection 11 is provided with flanges12 around its sides. The top 13 of the member 10 is closed. On thebottom 14 of the combustion chamber 10 is placed a burner base 15 towhich are secured the burner pipes 16 by means of the straps 17.

Alongside of the combustion chamber 10 and spaced therefrom is acondensing chamber 18 connected with the combustion chamber by means ofthe two tubes 19 near the upper ends of both bodies. The horizontalsmoke pipe 20 for carrying ofi? the burned gases turns downwardlythrough the top 21 of the condensing chamber 18 and has hung from itslower end 22 a relatively flat funnel 28 by means of the straps 24. Ahole 25 is formed in the bottom 26 of the condensing chamber 18 andconnects with the funnel 27 of the condensation pipe 28 which opens intoa sewer or receptacle outside of the furnace. Legs. 29 and 30 supportthe members 10 and18 on the floor.

Around the combustion chamber 10 and the condensing chamber 18 is placeda eas ing whose side walls 31 are provided with insulation 32 alongtheir upper portions, which insulation is further lined with a metalcasi-ng 33.

The smoke pipe 20 projects through one side 8401"? the casing. Acleanout door 35 is provided which also acts as a support for thecondensation pipe 28. The cold air duct 36 can be admitted through themost con venient side 31.

A door frame 37, preferably cast in alumi num and pi, vided with a door38, placed against a hole in one of the sides 31 in front of theprojection 11 and is secured to the flanges 12.

The top 39, which serves as a pan for the sand 10, also serves as astarting point for the varidus runs of warm air pipe 11.

T he operati on of the furnace isas follows:

W lien gas is burned at the burners 16 the heat oii" the burning gasesis radiated through the walls of the combustion chamber 10 into thesurounding air which is entcriug thro igh the coldair pipe 36, causingsame to rise and pass out by way of the warm air pipes 11 in the usualmanner. The burned. gases now pass through the tubes 19 of thecondensing chamber 18 where they give off still more of the heat; thecoldest of these gases settling downwardly into the condensing chamberunder the pressuer of other burned gases and finally make their escapethrough the open end-v 22 into the smoke stack or outside atmosphere.

It will be seen that the ten'iperature of these burned gases have thusbeen rapidly lowered to a point where they will liquefy. If" thistranspires within the condensing chamber, or as will most likely be thein the vertical portion of the smoke pipe 20, the liquids thus formedwill be carried by gravity to the condensation pipe 28 by means of whichthey are withdrawn from the fun nace.

It will thus be seen that instead. of carrying the stack temperature ofthe furnace at a height sutficient to carry off the heavier gases andvapors always accompanying the combustion of gases made from oil, thatthe stack temperature may well be lowered to a point which is onlysuflicient to stimu? iii) late a draft capable of carrying away siichgases which will not readily condense.

Since one of the greatest dif iculties encountered in the constructionof furnaces for the burning of oil gas is due to the destructive natureof the gases themselves, it is evidentthat by this construction thegreat diiiiculty in this type of furnace is overcome.

I am aware that many forms of fnr naces have been constructed in thepast; I therefore do not claim such furnaces broadly, but i do intend tocover all such forms and. modifications thereof as fall fairly withinthe appended claims.

i claim:

1. A gas furnace having, in combination, a combustion chamber; acondensing chamber spaced therefrom and connected therewith by means ofpassageways between their nper ends; an upright smoke pipe within saidcondensing chamber having its die near the bottom of said condensing clamber; anl means directly under said said smoke state: for carrying thecondensation from sa't condensing chamber and smoke pipe out of saidfurnace by gravity.

A gas furnace having, in combination, ght combustion chamber having aburner contained therein; an upright condensing chamber spaced fromStiltt i0llil7ll5- tion chan'iber; passageways connectin paid chambersnear their nper ends; a casing around said chambe s spaced therefrom; aswoke pipe passing downwardly tirough said condensing chamber and havingits intake near the bottom thereof.

3. i1 gas furnace having, in combination,

an upright combustion chamber; means for burning gases within saidchamber; an 11')- right condensing chamber mounted alongsic e of saidcombustion chamber; passageways connecting said chambers near theirupper ends; a casing around said chambers spaced therefrom; a smoke pipepassing through said casing dowi'iwardly into said condensing chan'iberand having its intake near the bottom thereof; a funnel below the intakeof said smoke pipe adapted to discharge condensed gases through thebottom of said comlensing chamber; a funnel under the bottom of saidcondensing chamber adapted to receive the discharge from said firstmentioned funnel and from the walls of said condensing chamber; a casingaround said combustion and condensing chambers and spaced therefrom;warm air discharge pipes leading from the top of said: casing; and meansfor admitting cold air to the lower portion of said casing.

A gas furnace having, in combination. an upright combustion chamber; anupright- ."ertical condensing chamber joined to said combustion chamberby meansof horizontal tubes between their upper ends; a smoke A ipeextending downwardly and having its intake near the lower end of saidcondensing chamber; a casing around said combustion chamber, said smokepipe passing down- 'ardly through said casing; funnels for catching thecondensation from said conibustion chamber and from said smoke pipe; anda pi pc for conducting condensation from said funnels and conveying samethrough said casing.

GRUB GE

